i) births and deaths 8 December 1939: birth of Jennie Linden, who played Barbara in Doctor Who and the Daleks (1965). ii) broadcast anniversaries 8 December 1979: broadcast of third episode of Nightmare of Eden . The Doctor realises that vraxoin comes from roast Mandrel. 8 December 2009: broadcast of second episode of Enemy of the Bane , concluding the second series of Sarah Jane Adventures . Sarah, Luke and the Brigadier force Mrs Wormwood and the Sontaran into a portal concealed in a stone circle. iii) real event featured in Who f 8 December 1980: John Lennon is assassinated, despite the efforts of the Doctor and Ace in Kate Orman's 1993 The Left-Handed Hummingbird .